开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

落了一地 · 2021年10月22日

单负债matching里的duration

* 问题详情,请 查看题干

NO.PZ201812020100000502

问题如下:

Which duration measure should be matched when implementing Strategy 2?

选项:

A.

Key rate

B.

Modified

C.

Macaulay

解释:

C is correct.

An investor having an investment horizon equal to the bond’s Macaulay duration is effectively protected, or immunized, from the first change in interest rates, because price and coupon reinvestment effects offset for either higher or lower rates.

在single liability matching的时候,因为PVasset=PVliability,Macaulay duration asset=Macaulay duration liability


而此时收益率相当于也是锁定的 r


那 modified duration asset=Macaulay duration asset/(1+r)=Macaulay duration liability/(1+r)=modified duration liability


所以在single liability matching时其实资产和负债所有的duration(modified duration/Macaulay duration liability/PVBP)等于都是相同的


所以为什么只能选C,不能选B?

2 个答案

pzqa015 · 2021年10月22日

嗨,爱思考的PZer你好:


懂了谢谢,但是多笔负债不是必须要PVBP相等么?单纯的modified D相等还是不行,因为多笔负债的要求是PVasset>PVliability,非要说的话应该是asset的modified D要小于liability的modified D,这样乘以对应的market value最后PVBP才能相等?

-----------------------


没错,多笔负债是PVBP相等,measure用modified duration,单纯的modified D不行,因为它代表的是价格变动率,我们想要得到的是价格变动绝对值,所以乘以MV,对于资产与负债mod D的大小,我们不做讨论,只要得到PVBP相等就行。

----------------------------------------------
努力的时光都是限量版,加油!

pzqa015 · 2021年10月22日

嗨,爱思考的PZer你好:


这是个结论,同学记住哈,下面解释下原理。

单笔负债免疫,对于负债来说,不受收益率曲线变动的影响。所以,我们构造资产的目标也是不受收益率曲线的影响。

我们反复强调的一个原理是投资债券的收益来自于三方面,coupon、coupon的RI和卖出价格。

其中,coupon不变,变化的是coupon的RI和卖出价格。

coupon RI与投资期有关,投资期越长,RI risk越大。

卖出价格与投资期负相关,投资期越长,mac D越大(mac D是久期这个词最本源的含义),越容易受收益率影响,price risk越大。

总可以找到一个投资期,使得investment horizon =mac D,这样投资债券的RI risk和price risk相互抵消,投资可以获得固定的收益,不再受收益率曲线影响,免疫成功。

所以,只要涉及到单笔负债免疫,只用mac D就行,不用modified D,多笔负债免疫才用modified D。


同学有点过度延伸了,题目问的是单笔现金流负债用什么久期来测量,根据公式,显而易见的就是mac D。


----------------------------------------------
就算太阳没有迎着我们而来,我们正在朝着它而去,加油!

  • 2

    回答
  • 1

    关注
  • 615

    浏览
相关问题

NO.PZ201812020100000502问题如下 Which ration measure shoulmatchewhen implementing Strategy 2? Key rateMofie. Macaulay C is correct. An investor having investment horizon equto the bons Macaulration is effectively protecte or immunize from the first change in interest rates, because priancoupon reinvestment effects offset for either higher or lower rates. 想问下 immunization 其实是要资产和负债对利率的敏感程度一致,不是mofieration 更合适?

2024-06-06 15:52 1 · 回答

NO.PZ201812020100000502 问题如下 Which ration measure shoulmatchewhen implementing Strategy 2? Key rate Mofie Macaulay C is correct. An investor having investment horizon equto the bons Macaulration is effectively protecte or immunize from the first change in interest rates, because priancoupon reinvestment effects offset for either higher or lower rates. 1、老师能帮忙区分下这三个ration嘛2、看了一些答案的解析有点混淆了,single lia和multiple的immunization的条件,我怎么记得最后都是直接asstBVP大于等于lia的BVP,然后asset的convexity大于lia的、但要尽量小?

2022-12-15 11:14 2 · 回答

NO.PZ201812020100000502 问题如下 Which ration measure shoulmatchewhen implementing Strategy 2? Key rate Mofie Macaulay C is correct. An investor having investment horizon equto the bons Macaulration is effectively protecte or immunize from the first change in interest rates, because priancoupon reinvestment effects offset for either higher or lower rates. 请问continuously matching ration该怎么理解?我可能是被这个单词误导了,我一直以为是“连续不断地”或者“持续地” matration,那这样就包含了利率非平行移动的情况,所以就选了A。

2022-12-04 10:44 1 · 回答

NO.PZ201812020100000502问题如下 Which ration measure shoulmatchewhen implementing Strategy 2? Key rate Mofie Macaulay C is correct. An investor having investment horizon equto the bons Macaulration is effectively protecte or immunize from the first change in interest rates, because priancoupon reinvestment effects offset for either higher or lower rates. 前面才说的“Kepler asks Ng for fferent strategies to manage the interest rate risk of the city’s fixeincome investment portfolio against one-time shifts in the yielcurve.”,不是说明曲线没有平行移动吗?

2022-03-29 11:39 2 · 回答